作　　者： (杜玉洁）; (刘宜成）; (涂海燕）;

机构地区： 四川大学电气信息学院,成都610065

出　　处： 《电子测量技术》 2017年第8期48-52,共5页

摘　　要： 收发谐振体是无线电能传输系统的重要组成部分,它的性能直接决定了整个系统传输效率的大小。选择平面螺旋线圈作为收发谐振体,通过有限元仿真软件HFSS分析了线圈的属性(匝数、基板材料、层数等)对线圈参数的影响趋势,并分析了谐振体之间的能量传输特性,仿真结果表明了线圈之间的耦合因数比线圈Q值对传输效率的影响更大。最后综合考虑线圈的性能和制作成本,选择最优线圈作出实物并搭建无线电能传输装置,整个装置能够在线圈直径2.5倍的450mm距离内点亮15 W的LED灯泡,传输效率达到60%以上。 Sending and receiving resonator is a key part in wireless power transfer system, its performance directly determines the size of the transmission efficiency of the whole system. In this paper, the plane spiral coil is chosen as the sending and receiving resonator. The influence of coil properties （number of turns, substrate material, number of layers, etc. ） on the coil parameters is analyzed by finite element simulation software HFSS, and the energy transfer characteristics between the resonators is analyzed. The simulation results show that the coupling factor between the coils has a greater effect on the transmission efficiency than the coil Q value. Finally, considering the coil performance and production costs, choose the best coil to make in-kind and build a wireless power transmission device. The entire device is capable of lighting a 15 W LED bulb within 450 mm of the coil diameter of 2.5 times, and the transmission efficiency is more than 60%.

关 键 词： 无线电能传输 平面螺旋线圈 传输特性